you can be right about religion's connection to right-wing politics and bigotry, but referring to someone as an angel because they do something wonderful doesn't even imply you believe angels exist or that you are religious at all (let alone devout or dedicated to religion). This makes your reaction feel out of place given the context, both in how extreme it is, and in how it responds to a casual reference to someone being an angel as if they had just sworn loyalty to the Bible.

It's a bit of a stretch to assume that just because someone calls a good person an "angel" that the person is religious.

Religion is the cause of all of this hate

Absolutely not. Religion is a pretext for the violence that people with power already want to commit. Religion is neither necessary nor sufficient for domination of others.

and always will be.

I'm not even remotely religious or even open to religion, but there are decent religious people out there. Frankly, some Christians are comrades, much more so than some atheists. Here's an example:

https://theanarchistlibrary.org/library/alexandre-christoyannopoulos-an-introduction-to-christian-anarchism

And for a less radical example, see Liberation Theology.

Tribalism kills

I wouldn’t call them real Christians if they don’t follow the teachings of Jesus, they’re Christians in Name Only (CINOs). Jesus calls on people to do good works and have faith. These people think they are justified to do whatever they want in life and then pat themselves on the back saying “it’s all good!” when they’re knocking on death’s door.

They’re patently ignoring the teachings of the Jesus, they’re not even reading their Bibles. They think what they do here on earth doesn’t matter at all, but what Jesus talks about is the exact opposite.

Things like loving your enemy as you love yourself, feeding the hungry, giving clothes to those without, shelter to those who need it, showing forgiveness to those who wrong you, and knowing that you are loved.

Edit: If you disagree I would appreciate a dialogue on the subject.

Do you know about Cynefin? Would you disagree if I say that religion is a complex Cynefin system and therefore can’t be entirely predictable? Would you say Lutheranism and the Theology of Liberation are equally as problematic as the KKK and Nazis?